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tDCS - zapping your Brain for Fun and Profit

WTF?

tDCS wikipedia is basically applying a dc current across your skull. This is said to increase learning and reduce depression etc. if done right. Searching around on the internet (especially the subreddit) shows that building a tDCS device is actually simple - all you need is a battery and a L334M current stabilizing IC (and some resistors). Put this together with some sponge electrodes (can be constructed easily at least according to a source below) and you'll be able to stimulate your own brain.

Better learning/thinking, less depression by electricity across your brain? Sounds awesome! Let's do it because:

"Few things make you feel more irresponsible than relying on a subreddit for information on zapping your brain."[1]